Q
qduc92


Hon hop X gom cac ancol co cong thuc :CH3OH ,C3H5OH,C2H5OH,C3H5(OH)3.Cho 25,4 gam hon hop X tac dung voi Na du thu duoc 5,6 lit khi H2(dktc).Mat khac dot chay hoan toan 25,4 gam hon hop X thu duoc a mol khi CO2 va 27 gam H2O.Xac dinh a?